Variety of technological trajectories in low emission vehicles (LEVs): a patent data analysis
AbstractThis paper focuses on the diversity of engine technologies for Low Emission Vehicles (LEVs) that are developed by car manufacturers in order to substitute for the conventional internal combustion engine vehicle. Our purpose is to analyse the competition between the various technologies for LEVs as well as the innovative strategy of car manufacturers. We first propose to define and to represent these technological trajectories in order to compare their performances and to identify their strength and weaknesses. The technological bottlenecks, the barriers to the adoption of these alternative engine technologies as well as the features of this technological competition are underlined. We then use a patent data analysis to study the patent portfolios of the main car manufacturers in these technologies on the period from 1990 to 2005. The dynamics of patents applied by car manufacturers gives insight on the competition among technologies and on the strategy of firms. This analysis emphasises the progressive diversification of firms patent portfolios over the whole set of engine technologies and the differentiated strategic positioning of car manufacturers according to countries.
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Bibliographic InfoPaper provided by Groupement de Recherches Economiques et Sociales in its series Cahiers du GRES with number 2006-20.
Date of creation: 2006
Date of revision:
Low emission vehicles; environmental innovation; technological competition; patent data;
Find related papers by JEL classification:
- O33 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
- Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation
- L62 - Industrial Organization - - Industry Studies: Manufacturing - - - Automobiles; Other Transportation Equipment
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-09-23 (All new papers)
- NEP-ENE-2006-09-23 (Energy Economics)
- NEP-ENV-2006-09-23 (Environmental Economics)
- NEP-INO-2006-09-23 (Innovation)
- NEP-TID-2006-09-23 (Technology & Industrial Dynamics)
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- Vanessa Oltra & Maider Saint Jean, 2005.
"The dynamics of environmental innovations: three stylised trajectories of clean technology,"
Economics of Innovation and New Technology,
Taylor and Francis Journals, vol. 14(3), pages 189-212.
- Vanessa OLTRA (GRES-IFReDE-E3i) & Maïder SAINT-JEAN (GRES-IFReDE-E3i), 2003. "The dynamics of environmental innovations : three stylised trajectories of clean technology," Cahiers du GRES 2003-03, Groupement de Recherches Economiques et Sociales.
- Lanjouw, Jean Olson & Mody, Ashoka, 1996. "Innovation and the international diffusion of environmentally responsive technology," Research Policy, Elsevier, vol. 25(4), pages 549-571, June.
- Zvi Griliches, 1998.
"Patent Statistics as Economic Indicators: A Survey,"
in: R&D and Productivity: The Econometric Evidence, pages 287-343
National Bureau of Economic Research, Inc.
- Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December.
- Zvi Griliches, 1991. "Patent Statistics as Economic Indicators: A Survey," NBER Working Papers 3301, National Bureau of Economic Research, Inc.
- repec:fth:harver:1473 is not listed on IDEAS
- Brunnermeier, Smita B. & Cohen, Mark A., 2003. "Determinants of environmental innovation in US manufacturing industries," Journal of Environmental Economics and Management, Elsevier, vol. 45(2), pages 278-293, March.
- Vanessa OLTRA (GREThA-GRES) & Maïder SAINT JEAN (GREThA-GRES), 2007.
"Incrementalism of environmental innovations versus paradigmatic change: A comparative study of the automotive and chemical industries,"
Cahiers du GRES
2007-19, Groupement de Recherches Economiques et Sociales.
- Vanessa OLTRA (GREThA) & Maïder SAINT JEAN (GREThA), 2007. "Incrementalism of environmental innovations versus paradigmatic change: A comparative study of the automotive and chemical industries," Cahiers du GREThA 2007-14, Groupe de Recherche en Economie Théorique et Appliquée.
- Sjoerd Bakker, 2009. "The Emergence of a Dominant Design – a study on hydrogen prototypes," Innovation Studies Utrecht (ISU) working paper series 09-15, Utrecht University, Department of Innovation Studies, revised Nov 2009.
- Vanessa OLTRA (GREThA UMR CNRS 5113) & René KEMP (University of Maastrich) & Frans P. de VRIES (University of Stirling), 2009. "Patents as a Measure for Eco-Innovation," Cahiers du GREThA 2009-05, Groupe de Recherche en Economie Théorique et Appliquée.
- Sjoerd Bakker, 2009. "The car industry and the blow-out of the hydrogen hype," Innovation Studies Utrecht (ISU) working paper series 09-14, Utrecht University, Department of Innovation Studies, revised Oct 2009.
- van der Vooren & Eric Brouillat, 2013. "Evaluating CO2 reduction policy portfolios in the automotive sector," Innovation Studies Utrecht (ISU) working paper series 13-01, Utrecht University, Department of Innovation Studies, revised Feb 2013.
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